body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
li {
  list-style: none;
}

#root {
  width:1000px;
  margin: 0 auto;
}
#header ul {
  padding:0;
  margin:0;
  display:flex;
  flex-direction: row;
}

#header ul li {
  display:inline-block;
  width:160px;
  text-align:center;
}